Statement Of Comprehensive Income [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||
| Profit (loss) |
–
GBP
|
1, 5 91
GBP
|
–
GBP
|
1, 6 74
GBP
|
–
GBP
|
1, 5 91
GBP
|
83,000,000
GBP
|
–
GBP
|
1, 674
GBP
|
15 4
GBP
|
–
GBP
|
–
GBP
|
1, 9 12
GBP
|
–
GBP
|
–
GBP
|
1, 7 5 8
GBP
|
1, 9 12
GBP
|
1, 75 8
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax | — | — | — |
11 6
GBP
|
— | — | — |
–
GBP
|
11 6
GBP
|
— | — |
–
GBP
|
64,000,000
GBP
|
— | — | — |
64,000,000
GBP
|
— |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax | — | — | — |
8,000,000
GBP
|
— | — | — |
8,000,000
GBP
|
–
GBP
|
— | — |
4,000,000
GBP
|
–
GBP
|
— | — | — |
4,000,000
GBP
|
— |
| Other comprehensive income |
–
GBP
|
3, 6 48
GBP
|
1, 0 53
GBP
|
3,684,000,000
GBP
|
–
GBP
|
2, 595
GBP
|
36,000,000
GBP
|
1, 0 74
GBP
|
2 , 61 0
GBP
|
2,000,000
GBP
|
–
GBP
|
2,000,000
GBP
|
2 ,12 1
GBP
|
3,000,000
GBP
|
–
GBP
|
2 ,12 1
GBP
|
2 ,12 3
GBP
|
2 ,12 4
GBP
|
| Comprehensive income |
–
GBP
|
5,239,000,000
GBP
|
1, 0 53
GBP
|
5, 358
GBP
|
–
GBP
|
4 ,18 6
GBP
|
11 9
GBP
|
1, 0 74
GBP
|
4,28 4
GBP
|
15 6
GBP
|
–
GBP
|
2,000,000
GBP
|
4 ,033
GBP
|
3,000,000
GBP
|
–
GBP
|
3, 879
GBP
|
4,035,000,000
GBP
|
3,8 8 2
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
5,2 39
GBP
|
— | — | — |
1,0 53
GBP
|
4 ,1 8 6
GBP
|
— | — |
3,000,000
GBP
|
3,8 8 2
GBP
|
— | — | — |
3, 879
GBP
|
— |
| Comprehensive income, attributable to non-controlling interests | — | — | — |
119,000,000
GBP
|
— | — | — |
21,000,000
GBP
|
98,000,000
GBP
|
— | — |
5,000,000
GBP
|
151,000,000
GBP
|
— | — | — |
15 6
GBP
|
— |